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(No Model.)

W. A. PENPIELD. WIGK ADJUSTER FOR CENTRAL DRAFT LAMPS.

No. 537,849. Patented Apr. 23,1895.

llnrrnn S'rnrns PATENT Orrrcn.

WVILLIAM A. PENFIELD, OF MERIDEN, CONNECTICUT, ASSIGNOR TO THE BRADLEY & HUBBARD MANUFACTURING COMPANY, OF SAME PLACE.

WICK- ADJUS TER FOR CENTRAL-DRAFT LAMPS.

SPECIFICATION forming part of Letters Patent No. 537,849, dated April 23, 1895. Application filed March 12, 1894. Serial No. 503,301- (No model.)

To aZZ whom it may concern:

Be it known that I, WILLIAM A. PENFIELD, of Meriden, in the county of New Haven and State of Connecticut, have invented a new Improvement in Wick-Adjusters for Central- Draft Lamps; and I do hereby declare the following, when taken in connection with the accompanying drawings and the letters of reference marked thereon, to be a full, clear, and exact description of the same, and which said drawings constitute part of this specification, and represent, in-

Figure l,aviewin side elevation of a wickadjuster constructed in accordance with my invention, showing also a portion of a lampfount and a wedge depending therefrom; Fig. 2, a plan view of the wick-adjuster showing the draw-bar in section; Fig. 3,areverse plan view thereof; Fig. 4, a sectional view through the jaws and the bushing which connects them together.

l/Iyinvention relates to an improvement in wick-adj usters for central-draft lamps, the object being to produce a simple, compact and convenient device, constructed with particular reference to facilitating the connection of the draw-bar with the wick-holder, and its disconnection therefrom, and to prevent un- (1 no separation of the jaws of thewick-holder.

With these ends in view, my invention consists in a wick-holder having certain details of construction and combinations of parts as will be hereinafter described and pointed out in the claims.

As herein shown, the wick holder consists of two corresponding jaws Aand A ,a hollow bushing 13, which couples the said jaws together, and on which they turn, and a wire spring C, connected with each jaw, and exerting a constant effort to close them together. The wick-adjuster is completed by the straight draw-bar D, which plays up and down through a bearing consisting of a short tube E, mounted in a vertical position in the top of the lamp-fount F. A wedge G, arranged in a plane at a right angle to the plane of the jaws, and depending from the top of the fount, is engaged by the jaws, and operates to separate them for releasing the wick when they are raised by means of the draw-bar.

The hollow bushing B, aforesaid,is swaged down at its upper end to form a flange b, and constructed at its lower end with a larger flange b, the two jaws being held together by means of the said flanges on the bushing. For the purpose of locking the bushing into one of the jaws, I construct the lower face of the jaw A, with two recesses a a, and upset the flange h into those recesses as at b c whereby the bushing is locked so as not to rotate in the jaw A. If desired, however, the bushing might be locked into the other jaw instead, in the manner shown and described, or in any other manner suitable to the purpose. The bushing is provided with an internal screw-thread which receives the externally threaded lower end of the draw-bar D, which when it is entered into the bushing, may be screwed into place without rotating the same, and so also it maybe removed from the bushing without rotating it, because the bushing, as has been described, is locked in one of the jaws. If the bushing were free to rotate, it isapparent that it would be extremely difficult to screw the draw-bar into it, or unscrew the draw-bar from it, inasmuch as the position of the wick-holder within the fount, would make it very difficult to get at the bushing so as to hold it from rotation at such times. The spring C, as herein shown, is provided with two coils C O, and arranged to pass around the shanks of the jaws before having its ends hooked into the lugs A A formed upon the jaws to receive them. This spring, however, may obviously be changed in form, and applied in a different way to the jaws without departing from the spirit of my invention. The jaw A is constructed with a stop a, arranged to engage with a stop-face a formed upon the jaw A, the said stop engaging with the said stopface to prevent the jaws from being thrown too far apart so as to strain or set the spring. Obviously the stop and stop-face might be reversed in position upon the jaws.

I would therefore have it understood that I do not limit myself to the exact construction herein shown and described, but hold myself at liberty to make such changes and alterations herein as fairly fall within the spirit and scope of myinvention. I am aware, however, that it is old to provide hinges with smooth bored bushings to receive the hinge-pintles,.

and, that it is old to flange such bushings at their upper and lower ends. I am also aware that it is old to provide hinges with stops for limiting their opening action.

Having fully described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. In a Wickadjuster for centraldraft lamps, the combination with two wick jaws, of a spring to close them together, an internally-threaded hollow bushing passing through the jaws, one of which turns upon it while the other is rigidly secured to it, and a draw-bar having bearing in the lamp-fount and threaded at its lower end to take into the internal screw-threads of the bushing which, by being rigidly connected with one of the jaws, is prevented from rotation while the draw-bar is screwed into it and unscrewed from it, substantially as set forth.

2. In a wick -adjuster for central-draft lamps, the combination with two wick jaws, of a spring to close them together, an internally threaded hollow bushing passing through the jaws, one of which turns upon it, and having its upper and lower ends provided with flanges, one of which is upset into recesses formed in the other jaw for locking the bushing against rotation therein, and a drawbar threaded at its lower end to take into the internal threads of the bushing,substantial1y as set forth, and whereby the bushing is heldternally threaded bushing passing through the jaws, one of which is rigidly connected with it while the other turns upon it, and a draw-bar threaded at its lower end to be connected with and disconnected from the said internally threaded bushing, one of the jaws being constructed with a stop and the other with a stop-face, the said stop and face being arranged to be brought into engagement to prevent the jaws from being opened too wide, substantially as set forth.

In testimony whereof I have signed this specification in the presence of two subscribing witnesses.

WILLIAM A. PENFIELD.

Witnesses:

W. J. ROBINSON, O. D. NEWBURY. 

